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Table 1 Summarize of the different scores that can be used to select eligible patients with post-resuscitation shock to extracorporeal life support

From: Post-resuscitation shock: recent advances in pathophysiology and treatment

Scores Points
Assessment of risk of circulatory-related death
CREST score
History of coronary artery disease 1
Non-shockable rhythm 1
LVEF at time of admission < 30% 1
Shock at presentation 1
Ischemic time > 25 min 1
Assessment of neurological prognosis
CAHP score
Age 1.1 × (age − 10)
Setting 0 if public setting and 24 if home
Initial Rhythm 0 if shockable and 27 if non-shockable
Collapse-BLS duration (min) 2.8 × duration
BLS-ROSC duration (min) 0.8 × duration
pH 585–77 × pH
Epinephrine dose during ressuscitation (total) 0 if 0 mg and 27 if 1 or 2 mg
OHCA score
Ventricular fibrillation or tachycardia − 13 if the initial recorded rhythm is VF or ventricular tachycardia
 + 6 × ln (no-flow interval)
 + 9 × ln (low-flow interval)
− 1434/serum creatinine
 + 10 × ln (arterial lactate)
No-flow interval (min)
Low-flow interval (min)
Serum creatinine (µmol/L)
Lactate (mmol/L)
CAST score
  0 1 2 3
Initial rhythm Shockable Non-shockable
Witness/ROSC time (min)  < 20 min  ≥ 20 min No witness
pH  ≥ 7.31 7.16–7.30 7.01–7.15  ≤ 7.00
Lactate (mmol/L)  ≤ 5.0 5.1–10.0 10.1–14.0  ≥ 14.1
Motor component of Glasgow coma scale  ≥ 2 1
Gray matter attenuation to white matter attenuation ratio  ≥ 1.201 1.151–1.200  ≤ 1.150
Albumin (g/dL)  ≥ 3.6 3.1–3.5  ≤ 3.0
Hemoglobin (g/dL)  ≥ 13.1 11.1–13.0    ≤ 11.0
  1. For the CREST score, ischemic time was defined as estimated time from cardiac arrest to return of spontaneous circulation
  2. LVEF left ventricular ejection fraction, BLS basic life support, Ln natural logarithm, ROSC return of spontaneous circulation